We Used To Know Lyrics

Lyric discussion by Flamencoprof 

Cover art for We Used To Know lyrics by Jethro Tull

On just rereading the lyrics, I thought it might be about the band's career arc and the music industry, with the general theme of being grateful for success, but not expecting it to last, how successful they had been so far, and how hard it was to start with. It used to make me think of Vikings, reminiscing of old raids, I think because of the penultimate verse.